Rail spike unit



FIG. 1 is a front perspective view of a rail spike unit showing our new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is an enlarged fragmentary sectional view taken along line 5--5 on FIG. 3;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a front elevational view thereof;

FIG. 9 is a rear elevational view thereof;

FIG. 10 is an enlarged sectional view taken in the direction of the arrows on line 10--10 in FIG. 9;

FIG. 11 is an enlarged sectional view taken in the direction of the arrows on line 11--11 of FIG. 9;

FIG. 12 is an enlarged fragmentary sectional view taken along line 12--12 of FIGS. 3, 8 and 9. 

The ornamental design for a rail spike unit, as shown. 